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1N5221B  
DC COMPONENTS CO., LTD.  
THRU  
RECTIFIER SPECIALISTS  
R
1N5259B  
TECHNICAL SPECIFICATIONS OF GLASS SILICON ZENER DIODES  
FEATURES  
* Voltage Range:2.4V to 39V  
* Double slug type construction  
DO-35  
MECHANICAL DATA  
* Case: Glass sealed case  
0.52Ø  
* Lead: MIL-STD-202E, Method 208 guaranteed  
* Polarity: Color band denotes cathode end  
* Mounting position: Any  
25.0MIN  
* Weight: 0.13 gram  
4.2MAX  
2.0MAX  
25.0MIN  
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS  
Ratings at 25 oC ambient temperature unless otherwise specified.  
Single phase, half wave, 60 Hz, resistive or inductive load.  
For capacitive load, derate current by 20%.  
Dimensions in millimeters  
VALUE  
SYMBOL  
UNITS  
Zener Current see Table "Characterisitics"  
Power Dissipation at Tamb=25oC  
Ptot  
Tj  
500(1)  
175  
mW  
oC  
Junction Temperature  
Storage Temperature Range  
Tstg  
-55 to + 175  
oC  
K/mW  
Typ.  
Min.  
Max.  
Volts  
Typ.  
Min.  
Max.  
Thermal Resistance  
RthA  
-
-
Junction to Ambient Air  
0.3(1)  
Forward Voltage  
at IF=100mA  
VF  
-
-
1
1)Valid Provided that leads are kept at ambient temperature at a distance of 8 mm from case.  
NOTE: Suffix "B" indicates Zener Voltage Tolerance ± 5%  
160  
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RATING AND CHARACTERISTIC CURVES (1N5221B THRU 1N5259B)  
Nominal  
Zener  
Voltage  
VZ@IZT  
Volts  
2.4  
2.5  
2.7  
2.8  
3.0  
3.3  
3.6  
3.9  
4.3  
4.7  
5.1  
5.6  
6.0  
6.2  
6.8  
7.5  
8.2  
8.7  
9.1  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
22  
24  
25  
27  
28  
30  
Zener  
Test  
Current  
IZT  
mA  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
Maximum Zener  
Impedance  
Typical  
Maximum Reverse Maximum  
Regulator  
Leakage Current  
Current  
Temperature  
Coefficient  
ZZT@IZT ZZT@IZK( )  
IR  
uA  
100  
100  
75  
75  
50  
25  
15  
@VR  
Volts  
1.0  
1.0  
1.0  
1.0  
1.0  
1.0  
1.0  
1.0  
1.0  
2.0  
2.0  
3.0  
3.5  
4.0  
5.0  
6.0  
6.5  
6.5  
7.0  
8.0  
8.4  
9.1  
9.9  
10  
11  
12  
13  
14  
14  
15  
17  
18  
19  
21  
21  
23  
25  
27  
30  
IZM  
mA  
191  
182  
168  
162  
151  
138  
126  
115  
106  
97  
89  
81  
76  
73  
67  
61  
55  
52  
50  
45  
41  
38  
35  
32  
30  
28  
27  
25  
24  
23  
21.2  
19.1  
18.2  
16.8  
16.2  
15.1  
13.8  
12.6  
11.5  
Ohms  
30  
30  
30  
30  
29  
28  
24  
23  
22  
19  
17  
11  
7
Ohms.  
1200  
1250  
1300  
1400  
1600  
1600  
1700  
1900  
2000  
1900  
1600  
1600  
1600  
1000  
750  
% / oC  
-0.085  
-0.085  
-0.080  
-0.080  
+0.075  
-0.070  
-0.065  
-0.060  
±0.055  
±0.030  
±0.030  
+0.038  
+0.038  
+0.045  
+0.050  
+0.058  
+0.062  
+0.065  
+0.068  
+0.075  
+0.076  
+0.077  
+0.079  
+0.082  
+0.082  
+0.083  
+0.084  
+0.085  
+0.085  
+0.086  
+0.087  
+0.088  
+0.089  
+0.090  
+0.091  
+0.091  
+0.092  
+0.093  
+0.094  
1N5221B  
1N5222B  
1N5223B  
1N5224B  
1N5225B  
1N5226B  
1N5227B  
1N5228B  
1N5229B  
1N5230B  
1N5231B  
1N5232B  
1N5233B  
1N5234B  
1N5235B  
1N5236B  
1N5237B  
1N5238B  
1N5239B  
1N5240B  
1N5241B  
1N5242B  
1N5243B  
1N5244B  
1N5245B  
1N5246B  
1N5247B  
1N5248B  
1N5249B  
1N5250B  
1N5251B  
1N5252B  
1N5253B  
1N5254B  
1N5255B  
1N5256B  
1N5257B  
1N5258B  
1N5259B  
10  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
2.0  
1.0  
0.5  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
7
5
6
500  
8
500  
8
600  
10  
17  
22  
30  
13  
15  
16  
17  
19  
21  
23  
25  
29  
33  
35  
41  
44  
49  
58  
70  
80  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
20  
9.5  
9.0  
8.5  
7.8  
7.4  
7.0  
6.6  
6.2  
5.6  
5.2  
5.0  
4.6  
4.5  
4.2  
3.8  
3.4  
3.2  
600  
600  
700  
700  
33  
36  
39  
800  
( )Izk=0.25mA  
1N52-SERIES  
Breakdown characteristics  
mA  
5V  
10V  
15V  
20V  
25V  
30V  
changes in the power dissipation  
due to the ambient temperature.  
50  
40  
30  
20  
10  
0
IZ  
500  
400  
300  
200  
100  
Test Current  
IZ 20mA  
50 100 150 200 300  
Ta(oC)  
Ambient Temperature.  
VZ  
DC COMPONENTS CO., LTD.  
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